In this article, i will comprehensively discuss the rule in Adams v Lindsell  1B & A 681, stating the facts for the case. Coupled with that, I am going to show you the various exceptions to the rule. On that note, if you are a researcher or a student and you really want to know the exceptions to the rule in Adams v Lindsell then relax and read this work painstakingly. This article contains everything you need to know about the rule. Now here we go!
The rule in Adams v Lindsell  1B & A 681 is also called the postal acceptance rule. It states that where acceptance is by post, it is completed and effective the moment the letter is posted.
Actually, the rule in Adams v Lindsell is one of the exceptions to another rule of law which states that; “for acceptance to be valid, it must be communicated to the offeror by actual notification“. The rule in Adams v Lindsell therefore posit that where such acceptance is made by post, it is effective as soon as it is posted.
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Many scholars have tried to brainstorm the reason behind this legal principle. For instance, some legal schorlars posit that since the post office is the common agent of both parties, a letter put in the post is technically acceptance communicated to the offeror.
Accordingly, some legal scholars also suggest that with the posting of the letter of acceptance, a contract is complete in that no other act is necessary to bring it into existence. The Acceptance is merely assented to the offeror’s very proposal.
It has also been suggested that the rule in Adams v Lindsell is the best because any other rule would lead to fraud and delays in commercial transactions, for the offeree must now wait to hear from the offeror that he has received the acceptance.
Lastly, according to Anson’s Law of Contract, the rule in Adams v Lindsell is most convinient of all alternatives.
Facts of the case of Adams v Lindsell
On the 2nd of September 1817 the defendant wrote to the plaintiff offering to sell some wool and requiring an “answer in the course of post”. The letter of offer was incorrectly addressed and it didn’t reach the plaintiff until the evening of 5th September. That same day, the plaintiff posted a letter of acceptance which reached the defendant on the 9th of September. It was established in evidence that if the letter of offer had been correctly addressed, a reply would have been expected “in the course of post” by 7 September. On the 8 September the plaintiff brought an action for breach of contract.
It was held that a contract came into existence between the plaintiff and the defendant on the 5th September when the plaintiff posted his letter of acceptance. Therefore the defendant was in breach of contract.
It should be noted that the postal acceptance rule will also apply where the letter of acceptance is layed in the post, and even where it is totally lost. This was corroborated in the case of Household Fire Insurance Co Ltd v Grant  4 E & D 216. Here, the defendant applied for share in the plaintiff’s company and the company posted a reply accepting the offer and stating the number of shares allotted to the defendant but the letter was lost in the post.
Subsequently, the company went into liquidation and the defendant who didn’t even know that he was a shareholder in thr company was suddenly called upon to pay for the shares in the company. The court held that, on the basis of the rule in Adams v Lindsell, he was liable to pay for the shares because, the moment the company posted their letter pf acceptance, it was effective and therefore contract came into existence. It didn’t matter whether the letter got to him.
Exceptions to the rule in Adams v Lindsell
The rule in Adams v Lindsell is subject to 5(five) exceptions. These exceptions are given below:
Where it will lead to absurdity:
In the case of British & American Telegraph co v Colson  LR 6, the court was of the view that the rule in Adams v Lindsell will not apply where the application would produce manifest inconvenience and absurdity. Take for instance, If a man proposed marriage and the women was to consult her parents and let him know, it would not be enough if she wrote and posted a letter which never reached him.
Where the terms of the offer specifically or impliedly say that acceptance must accurately reach the offeror:
This is another key exception to the rule in Adams v Lindsell. It will not apply where the terms of the offer specify expressly or impliedly that acceptance must accurately reach the offeror. Where this is the case, the Acceptance does not take effect at the moment of posting, but at the moment when the letter reaches the offeror.
For example, in the case of Holwell securities Ltd v Hughes  1 WLR 155, the defendant required the plaintiff to accept “by notice in writing” to the defendant. The plaintiff sent a written acceptance by ordinary post but this was never received by the defendant. The plaintiff claimed that he had made a valid acceptance as soon as the letter pf acceptance wa posted. It was held that the offer had not been validly accepted on the ground that by requiring “notice in writing”, the offeror intended to have actually intimation of acceptance.
According to Lawton LJ, a “notice” is a means of making something known. If a notice is to be of any value, it must be an intimation to someone. Thus, a notice which cannot impinge on someone’s mind is not functioning as such.
Where the letter is wrongly posted:
Another important exception to the rule in Adams v Lindsell is where the letter was actually posted wrongly. This was seen in the case of Re London and Northern Bank, ex parte Jones  1 Ch 220. In this case, the bank wrote a letter accepting Dr Jone’s application for share and handed it to one of its employees for posting early on 27 October 1900. The employee took the letter to the General post office at 7.00am that morning but instead of posting it himself, handed it over to the postman.
The postman took the letter to a district office where he posted the letter. It was not delivered until 7.30 pm. Meanwhile, Jones had earlier written a letter withdrawing his offer. The letter was received atrl the bank at 8.30am and opened at 9.30 am. It was held that handling the letter to the post man outside the General Post office was not “posting“.
Where it is unreasonable to use post as a means of communication:
Apparently, this is another exception to the rule in Adams v Lindsell. Where is it absolutely unreasonable, this rule will not be applied. Take for instance, where the offeree knows that the postal service is disrupted but still insist on posting the letter it will not be valid. This was laid down in the case of Bal v Staden  TS 128.
Where from the circumstances of the case, the negotiating parties could have intended that a communication must be made:
Lastly, one of the exceptions to the rule in Adams v Lindsell is where from the circumstances of the case, the negotiating parties could have intended that there should be a binding agreement until the parties accepting the offer had in fact communicated the acceptance.
Yeah! These are the exceptions to the rule in Adams v Lindsell (Also known as the the Postal rule). It should be noted that this rule (the rule in Adams v Lindsell) is not admissible in some courts. For instance, in the US case of Rhode Island Tool co v US, the rule in Adams v Lindsell was not applied. Also in Dick v US, this rule was also not applied.
Hope this article was helpful? If you have any contribution or question to ask about the exceptions to the rule in Adams v Lindsell, kindly direct it to me using the comment section. I also enjoin you share this post and let other lawyers know about the exceptions to the rule in Adams v Lindsell  1B & A 681.
Edeh Samuel Chukwuemeka ChMC, is a Law Student and a Certified Mediator/Conciliator in Nigeria. He is also a Developer with knowledge in HTML, CSS, JS, PHP and React Native. Samuel is bent on changing the legal profession by building Web and Mobile Apps that will make legal research a lot easier.